Soft Magnetic Materials AC Measuring Device
Accurately measure remanence Br, coercive force Hc, specific total loss Ps, amplitude permeability µa, loss angle δ, resistive permeability µR, inductive permeability µL, elastic permeability µ′, viscous permeability µ ", inductance coefficient AL and Q value and other dynamic magnetic characteristic parameters.
It conforms to China National Standards GB 5026-85, GB 3658-90, GB/T 9632.1-2002, GB/T 19346-2003, industry-standard SJ/T 10281-91 and international standard IEC 60367-1, IEC 60404-6.
The controlling of computer and A/D sampling replace the traditional analog bridge, frequency meter, ammeter, voltage meter, and power meter, the whole testing process is automatically completed.
General Features of AC Hysteresis Graph (DX-2012SA)
1. Testing sample varieties: soft magnetic ferrite, permalloy, amorphous, amorphous and nm crystal.
2. Test sample shapes: annular, E and U shapes.
3. Test samples with a closed magnetic circuit can be directly winded and measured on samples. Sample, magnetizing coil (N1) and measuring coil (N2) form a no-load transformer.
4. Non-inductive resistance is connected to magnetizing coil loop to determine magnetizing current and magnetic field intensity through the measurement of pressure drop on noninductive resistance, magnetic field peak value can be locked through digital feedback, and magnetic field lock precision 0.5%.
5. Magnetic induction obtained through digital integration of coil measuring voltage, magnetic induction peak value locked through digital feedback, magnetic induction lock precision 0.5%.
6. Power source and sampling amplifier integrated into a casing with a simple interface: one RS232 interface connected to the computer, two-way voltage alarm connected to high-speed A/D card.
7. Different power sources can be selected according to different test requirements: 1kHz ~ 300kHz or 500kHz, 5kHz or 10kHz ~ 100kHz, or other frequency ranges customized.
8. Measuring dynamic hysteresis loop through voltammetry and digital integration can accurately measure dynamic magnetic characteristic parameters such as µa, d, Pc, Br and Hc, and calculate µ', µ'', µL, µR, Q and AL, etc.
9. Automatic and continuous measurement up to 255 testing points, the testing time of every testing point is about 12 seconds, fixed-frequency or fixed Bm optional in the multipoint test.
Software Features of AC Hysteresis Graph (DX-2012SA)
1. Operate under Windows XP, 7, 8, and 10 operating systems, conform to Windows software specification, visual and simple operation.
2. Full automatic control, intelligent identification, and user intervention are unnecessary in the entire testing process.
3. Sampling waveform and instrument status under real-time monitoring, and can be stopped at any time.
4. The effective sectional area and length of the magnetic path of samples can be calculated according to the overall dimension of the samples.
5. The file system adopts a database format, and can directly print or output test results in Excel form.
6. Powerful file management functions: data saving, deletions and removal.
7. Data files contain complete sampled data, sample parameters, instrument parameters and testing schemes, adopt text format, can be conveniently typed into other software.
8. Display I (t), U (t) and B (t) sampling waveform and B (H) hysteresis loop, and coordinate message at every data point on the curve.
9. The multipoint cluster can display B (H) magnetic hysteresis cycle cluster, B (H) magnetization curve, µa (H) permeability curve, µa (F) permeability curve, Ps (B) damage curve and Ps (F) damage curve, and can display coordinate message at every data point on the curve.
10. B (H) magnetization curve, µa (F) permeability curve, Ps (B) damage curve and Ps (F) damage curve measured under different conditions can be combined on one drawing for comparative analysis.
11. Set up upper and lower limits according to µa, Ps, Bm, Br, Hc and Hm, etc., qualify test results and determine through the color of the data table.
12. Support various models of printers, test reports accurately match printer sheets.
13. The print preview function can conveniently regulate the size and edge distance of the test report.
14. The test reports can be directly printed, or generated as JPG image files.
15. JPG image files can be sent directly through E-mail, or saved into disk.
16. Test reports contain complete curve diagrams, test results, test conditions and sample parameters. To facilitate adding user mark and enterprise name.
17. Multiple unit systems are optional to satisfy the application habits of different users.
Software Screen of AC Hysteresis Graph (DX-2012SA)
Sampling waveform (U-I-B) (repetitive experiment)
Single BH AC hysteresis loop
BH hysteresis loop cluster
Ps-B loss curve of the material at 20KHz
B-H magnetization curve and u-H permeability curve of the material at 20KHz
Comparative analysis of Ps-B loss curves of material at different frequencies of 30kHz, 40kHz and 50kHz
